| A | B |
|---|
| Track | A storage channel on disk or tape. On disks tracks are concentric circles or spirlas. On tapesthey are parallel lines. |
| Sector | The smallest unit of storage read or written on a disk. |
| Cylinder | The aggregate of all tracks that reside in the same location on every disk surface. On multiple-platter disks, the cylinder is the sum total of every track with the same track number on every surface. On a floppy disk, a cylinder comprises the top and corresponding bottom track. |
| Inductance | A circuit or device in which a change in the current generates anelctromagnetic motor |
| Head crash | When the read/write head accidentily makes contact with the surface of the disk |
| Park | Read/Write head moves over an unused section of the disk when the computer is powered off |
| master | The first IDE or EIDE device on a single IDE channel. If the device is the hard drive on the first IDE channel, the device can eb formated to be the boot disk. |
| form factor | The physical size of a device as measured by outside dimensions.With regard to a disk drive the form factor is the overall diameter of the platter and case, such as 3.5 inches or 5.25 inches, not the size in terms of storage copacity |
| Slave | The second device on IDE |
| MPEG Decoder | MPEG stands fo Movie Picture Expert Group. This group has developed MPEG digital video compression standards and file formats, including MPEG-1 and MPEG-2 |
| QIC | Stands for quarter inch cartridge. Oldest, mst standarized backup tape technology, available for most computer platforms |
| DAT | Stands for digital audio Tape. Backup format that offers higher storage capacity at lower cost then QIC technology. Capacity is from 1 GB to 4 GB and up. |
| DLT | Stands for Digital Linear Tape. Backup tape technology developed by DEC. Current storage capacity is up to 50 GB. |
| ATAPI | At Attachment Packet Interface. An extension to EIKE that enables support fo CD-ROM and Tape drives |
